ZHCSGE0B June 2017 – January 2019 TPS53681
PRODUCTION DATA.
The STATUS_IOUT command returns one byte of information relating to the status of the converter's output current related faults.
The STATUS_IOUT command must be accessed through Read Byte/Write Byte transactions. STATUS_IOUT is a paged register. In order to access STATUS_IOUT command for channel A, PAGE must be set to 00h. In order to access STATUS_IOUT register for channel B, PAGE must be set to 01h. If PAGE is set FFh, the device return value will reflect the status of Channel A.
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| RW | 0 | RW | 0 | RW | 0 | 0 | 0 |
| IOUT_OCF | IOUT_OCUVF | IOUT_OCW | IOUT_UCF | CUR_SHAREF | POW_LIMIT | POUT_OPF | POUT_OPW |
| Bit | Field | Type | Reset | Description |
|---|---|---|---|---|
| 7 | IOUT_OCF | RW | Current
Status |
Output Over-Current Fault
0: Latched flag indicating no IOUT OC fault has occurred. 1: Latched flag indicating a IOUT OC fault has occurred . |
| 6 | IOUT_OCUVF | R | 0 | Not supported and always set to 0. |
| 5 | IOUT_OCW | RW | Current
Status |
0: Latched flag indicating no IOUT OC warning has occurred 1: Latched flag indicating a IOUT OC warning has occurred |
| 4 | IOUT_UCF | R | 0 | Not supported and always set to 0. |
| 3 | CUR_SHAREF | RW | Current
Status |
0: Latched flag indicating no current sharing fault has occurred 1: Latched flag indicating a current sharing fault has occurred |
| 2 | POW_LIMIT | R | 0 | Not supported and always set to 0. |
| 1 | POUT_OPF | R | 0 | Not supported and always set to 0. |
| 0 | POUT_OPW | R | 0 | Not supported and always set to 0. |
Per the description in the PMBus 1.3 specification, part II, TPS53681 does support clearing of status bits by writing to STATUS registers. Writing a 1 to any supported bit in this register will attempt to clear it as a fault condition.